Category

Published on

18 Oct 2006

Abstract

In this paper, we apply a two-dimensional quantum mechanical simulation scheme to study
the effect of channel access geometries on device performance. This simulation scheme solves the
non-equilibrium Green’s function equations self-consistently with Poisson’s equation and treats the
effect of scattering using a simple approximation inspired by Büttiker. It is based on an expansion
of the device Hamiltonian in coupled mode-space. Simulation results are used to highlight quan-
tum effects and discuss the importance of scattering when examining the transport properties of
nanoscale transistors with differing channel access geometries. Additionally, an efficient domain
decomposition scheme for evaluating the performance of nanoscale transistors is also presented.
This paper highlights the importance of scattering in understanding the performance of transistors
with different channel access geometries.